/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraFunctionLibrary.h
Finds an array interface of the given class.
template<class TDIType> static TDIType * GetDataInterface ( [UNiagaraComponent](API\Plugins\Niagara\UNiagaraComponent) * NiagaraSystem, [FName](API\Runtime\Core\UObject\FName) OverrideName )